EP 3494043 B1 20210728 - METHODS AND SYSTEMS FOR DETECTING AND RESOLVING FAILURE EVENTS WHEN RAISING AND LOWERING A PAYLOAD
Title (en)
METHODS AND SYSTEMS FOR DETECTING AND RESOLVING FAILURE EVENTS WHEN RAISING AND LOWERING A PAYLOAD
Title (de)
VERFAHREN UND SYSTEME ZUR DETEKTION UND AUFLÖSUNG VON FEHLEREREIGNISSEN BEIM HEBEN UND SENKEN EINER NUTZLAST
Title (fr)
PROCÉDÉS ET SYSTÈMES DE DÉTECTION ET DE RÉSOLUTION D'ÉVÉNEMENTS DE DÉFAILLANCE LORS DE L'ÉLÉVATION ET DE L'ABAISSEMENT D'UNE CHARGE UTILE
Publication
Application
Priority
- US 201662385859 P 20160909
- US 201615389338 A 20161222
- US 2017049199 W 20170829
Abstract (en)
[origin: US2018072417A1] Described herein are methods and systems for detecting and correcting errors when picking up and lowering a payload coupled to a tether of a winch system arranged on an unmanned aerial vehicle (UAV). For example, the winch system may include a motor for winding and unwinding the tether from a spool, and the UAV's control system may control the motor to lower the tether and monitor an electric current supplied to the motor to determine whether a payload has detached from the tether. This process of lowering the tether and monitoring the motor current may be repeated up to a predetermined number of times, at which point the control system may operate the motor to detach the tether from the spool, leaving both the tether and the payload behind.
IPC 8 full level
B64D 1/22 (2006.01); B64C 39/02 (2006.01); B66D 1/12 (2006.01); B66D 1/48 (2006.01); B66D 1/54 (2006.01); B66D 1/34 (2006.01); B66D 1/60 (2006.01)
CPC (source: EP US)
B64C 39/024 (2013.01 - US); B64D 1/22 (2013.01 - EP US); B66D 1/12 (2013.01 - US); B66D 1/60 (2013.01 - US); B64U 2101/60 (2023.01 - US); B64U 2101/64 (2023.01 - EP); B64U 2101/67 (2023.01 - EP); B64U 2201/10 (2023.01 - EP US); B66D 2700/0141 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 10000285 B2 20180619; US 2018072417 A1 20180315; AU 2017322228 A1 20190502; AU 2017322228 B2 20200528; AU 2020220089 A1 20200903; AU 2020220089 B2 20221110; AU 2022287542 A1 20230202; CN 109890701 A 20190614; CN 109890701 B 20221125; CN 115675875 A 20230203; EP 3494043 A1 20190612; EP 3494043 A4 20200325; EP 3494043 B1 20210728; EP 3907133 A1 20211110; EP 3907133 B1 20230816; FI 3907133 T3 20230825; US 10683195 B2 20200616; US 2018257779 A1 20180913; WO 2018048681 A1 20180315
DOCDB simple family (application)
US 201615389338 A 20161222; AU 2017322228 A 20170829; AU 2020220089 A 20200818; AU 2022287542 A 20221212; CN 201780066175 A 20170829; CN 202211397047 A 20170829; EP 17849333 A 20170829; EP 21181711 A 20170829; FI 21181711 T 20170829; US 2017049199 W 20170829; US 201815977908 A 20180511